Forests of Porto Rico

Auteur : Andrew Robeson Whitson, Carleton Roy Ball, Ernest Kelly, Frank Leslie Simanton, Fred Taylor, Harry Nelson Vinall, James Robert Weir, Louis Sutliffe Murphy, Ralph Wesley Howe, Robert Asa Cushman, Clyde Evert Leighty, Dwight Isely, Herbert Bradley Hendrick, Lee Briggs Cook, Roland McKee, William Samuel Dean, J. A. Gamble

Date de publication : 1917

Éditeur : U.S. Department of Agriculture

Nombre de pages : 28